[Physics-grads-open] PASS talk today

[Pooyan Goodarzi]

Hi all,

We will have a PASS talk by Kumar *today*. Please join us at noon (from
12:00 pm to 1:00 pm) in the Nebula Room (PHYS 3027).


 *Kumar Maghoul , PhD student*
Monday, 12:00 pm, Nebula Room (PHYS 3027)
*Experimental Generation and Characterization of High-Dimensional Quantum
Entanglement in Photonic Qubits*

We report on the experimental realization and characterization of
high-dimensional quantum entanglement using spatially encoded photonic
qubits. Entangled photon pairs were generated via spontaneous parametric
down-conversion in a nonlinear crystal and encoded into orbital angular
momentum (OAM) modes to access a Hilbert space dimension up to *d = 7*. The
entangled states were analyzed using a combination of mode sorters and
projective measurements implemented with spatial light modulators. We
quantify entanglement using the generalized concurrence and perform full
quantum state tomography to reconstruct the density matrix of the system.
Our results confirm the presence of strong entanglement beyond the qubit
level and demonstrate the scalability of the platform for high-dimensional
quantum information protocols. These findings pave the way for more robust
and secure quantum communication schemes, leveraging the increased
information capacity inherent in high-dimensional entangled states.


If you’re interested in sharing your work as a speaker, please feel free to
add your name to this spreadsheet [Google Sheet
<https://docs.google.com/spreadsheets/d/1N3ncf43jdB6aHYHhyWmyHMycxDg4_phHZXLkQvviO0o/edit?usp=sharing>].
Recordings of all the previous talks are available on our website:
https://ucrpass.arxiv.social


Best,
Pooyan
Physics and Astronomy Student Seminar (PASS)
https://ucrpass.arxiv.social
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